We at Orange County Speech Services are committed to providing top quality speech and language therapy, occupational therapy, and physical therapy to our clients, their families and the Southern California medical community.

Our Team

Speech Therapists
Elizabeth Mitchell

M.S., SLP, Director OC Speech Services (Speech Therapist)

Elizabeth received a Bachelor of Arts at the University of California, Santa Barbara, in Interdisciplinary Studies (Psychology, Linguistics and Speech & Hearing Science) in 2002, and her Masters of Science in Speech Pathology in 2005 from Cal State University, Northridge. She has specialized training and certificates including Stanley Greenspan’s DIR/Floortime therapy approach, the Lindamood-Bell Advanced workshops in auditory comprehension and Visualizing to Verbalizing, Beckman Oral Motor Program techniques, and PROMPT therapy training.


Elizabeth began her career in a pediatric outpatient hospital setting co-treating with physical and occupational therapists, and has worked extensively in the public school system and in early intervention with children with Autism Spectrum Disorder, and a variety of deficits in articulation, oral motor, feeding, auditory processing, reading, social/pragmatics and expressive and receptive language.


Elizabeth is a licensed Speech & Language Pathologist and Clinical Director/Owner of Orange County Speech Services.  She is certified member of the California Speech and Hearing Association, a lifelong resident of Southern California, and the mother of three beautiful children.

Christine Daffer

B.S., SLPA (Speech Therapist, ABA Specialist)

Christine has worked at Orange County Speech Services since 2015.  She is licensed with the state of California as a Speech Language Pathology Assistant and graduated from Utah State University with a B.S. Degree in Communicative Disorders.


Christine works with children on the Autism Spectrum and has been an ABA Specialist for over 10 years and is pursuing her Master’s degree in Applied Behavior Analysis. She has a unique ability of taking the child’s clinical goals and bringing them into the home and school environment naturally.

Her dedication to her clients is evident in their continued progress. Having raised her 2 grown sons, she loves working with the children at OC Speech Services and spending time with her dogs and cats.

Dana Simon

M.S., CCC-SLP (Speech Therapist)

Dana earned her Bachelor of Science degree in Communicative Disorders and Deaf Education from Utah State University and her Master’s degree in Communicative Disorders at California State University, Northridge. During her education, Dana completed one of her internships at an adult transition program in Tustin, CA through the Orange County Department of Education. In addition, she completed internships through the Irvine Unified School District.


During the first 3 years of her education in the field, Dana worked as a Speech-Language Pathologist Assistant for OC Speech Services while she was completing her master’s degree; currently, Dana is completing her clinical fellowship with OC Speech.

Dana has been working with children since she was in high school, volunteering and working as a camp counselor over the summers. Once she started working for Gymboree as a play and music teacher, it was evident to her that her leadership skills shined through when she was interacting with children and enriching their overall emotional, behavioral, and social development.


In her free time, Dana enjoys spending time with her family and friends in sunny Southern California, where she was born and raised. 

Kayli Buckingham

A.A., SLPA (Speech Therapist)

Kayli Buckingham received her Associate of Science degree in speech language pathology assisting from Orange Coast College in 2017 and has been working in the field for 3 years. She has found a passion for early intervention therapy while working in the field. Kayli has had previous experience as a behavioral interventionist and respite caregiver before starting her career as a speech language pathology assistant.

She has always loved working with children, starting her first job babysitting a child with Down syndrome at the age of 16. In her free time she enjoys hiking, biking, and spending time with family and friends.
She is very excited to be a part of the OCSS team!

Ruth Jones

SLPA (Speech Therapist, ABA Specialist)

Ruth Jones grew up in Washington State and moved to California, where she graduated from Biola University with a Bachelor’s degree in Psychology and from Cerritos Community College with her Speech Language Pathology Assistant degree. She has worked with children with Autism, since 2003, as a behavior interventionist and supervisor, working in schools, clinics, and homes in the Long Beach and Los Angeles County School Districts. She specializes in ABA, DTT, and Floor Time. Her experience in speech therapy includes individual and group sessions, with client populations ranging from pediatrics to adulthood, covering area deficits such as the following: oral motor, articulation, phonology, fluency, comprehension, social skills, co-treatment with occupational therapy, and more.


In her spare time, she enjoys running, hiking, baking, and hanging out with family and friends.

Erin Nichiporuk

B.S., SLPA (Speech Therapist)

Erin graduated from California Baptist University in 2014 with a Bachelor’s Degree in Communication Disorders. She completed an internship at an elementary school during her time at CBU. In this internship she found her passion for helping children through speech therapy. Erin has worked in both the private practice and school therapy settings within Southern California. She has experience working within early intervention, articulation and phonological disorders, expressive and receptive language delay, auditory processing disorder, apraxia of speech and fluency disorders. She has treated children with a range of diagnoses such as Autism Spectrum Disorder, Down Syndrome, Fragile X Syndrome, ADHD, and more. Erin is trained in the treatment of Childhood Apraxia of Speech using the Kaufman Speech to Language Protocol.


Erin strongly believes each child that comes into the clinic can meet each goal and beyond. She enjoys building relationships with the families she works as well as observing them progress and develop.

Catherine Do

SLPA (Speech Therapist)

I was born in Arlington, Virginia and moved to California in junior high school. I received my Associate of Science in Speech-Language Pathology Assistant at OCC. I am currently enrolled at California State University, Long Beach to finish my undergrad and continue my education to achieve my goal in acquiring my master’s degree. Before discovering my true love for speech-language pathology, I worked as an early childhood instructor, trained in implementing ABA techniques, and gained valuable experience working with behavior intervention.


I enjoy working with all ages ranging from pediatrics, adolescence, and early-late adulthood in numerous settings including school-based, home therapy, and now in the clinic setting. My therapy style consists of child-directed, play-based intervention with my little kiddos and an emphasis on socializing and being active participants in their lives and in society with my older clients. I believe that every individual is unique and amazing and I learn from my clients just as much as they learn from me everyday. I am passionate about family/caregiver involvement combined with our multidisciplinary team and strive to work together to make a difference. During my free time I enjoy traveling the world, reading endlessly, cliff jumping into the ocean, and camping in nature.

Rochelle Draper

B.S., SLPA (Speech Therapist)

Rochelle has a Bachelor of Arts degree in Speech-Language and Hearing Sciences from The George Washington University. While balancing her rigorous school schedule she also played on the University’s Division I softball team the entire 4 years!  Rochelle is currently earning her Master’s degree in Communication Sciences and Disorders at Chapman University. During her undergraduate years, she worked at a local pediatric speech therapy clinic growing her knowledge of children with an Autism diagnosis as well as articulatory disorders. She also participated by leading a social pragmatic skills summer program there. While she is earning her Master’s degree to become a licensed Speech & Language Pathologist, Rochelle is working at OC Speech as a Speech Language Pathologist Assistant.


Rochelle has been working with children since she was in middle school as a softball instructor at a private facility. This experience allowed her the opportunity to coach young children and she developed the leadership skills required for working with children of all ages. Rochelle values being a role model for children and strives to make positive impacts in their lives.


In her free time, Rochelle loves to spend to time with her family and friends. She loves to engage in competitive sporting activities and absolutely loves game nights!

Occupational Therapists
Hollie Fassnacht 

COTA (Occupational Therapist) 

Hollie is a local girl who grew up in Costa Mesa, CA. She is the daughter of a CHP officer and an Art Teacher, and in turn has a gift for fairness and creativity that she credits her parents for. She is a full time parent to three fur-babies: a cat and two rescue dogs. She is also the “Fun Aunt” for 2 nieces and 2 nephews. 


Hollie started working with children from an early age teaching and coaching swimming. She realized how quickly children can grow when you make activities fun and individualized. Being a local girl, Hollie chose San Diego State for her Bachelor’s degree in Graphic Design and later on chose to switch careers to Occupational Therapy and Graduated from the program at SAC in 2010.


Hollie has experience with school based and clinic based OT and has experience in Sensory Integration, Feeding Intervention, Hand Writing Without Tears and Early Intervention.

Taylor Sheldrick

MS, OTR/L (Occupational Therapist)

Taylor grew up in Seattle,  Washington and moved to California when she was recruited to the California State University, Fullerton NCAA Gymnastics team.  She received her bachelors from CSUF and her Masters of Science in Occupational Therapy from Stanbridge University.  She has a background as an Early Childhood Specialist teaching children between the ages of 18 months to 4 years. She has always known her love for the pediatric setting, however, has experience with older adults as well. She participated in a study that determined the effectiveness of Scuba Diving paired with Occupational Therapy on Veterans diagnosed with Post-Traumatic Stress Disorder (PTSD). She also has experience in working at Skilled Nursing Facilities with older adults with a variety of diagnoses including stroke, Parkinson’s disease, joint replacement, heart disease, and feeding difficulties. 


She continues to follow her passion in the pediatric setting where she has experience with Autism, feeding difficulties including feeding tubes, sensory processing, early intervention,  and specialized training n Sequential Oral Sensory (SOS) Approach to Feeding, a trans-disciplinary program for assessing and treating children with feeding difficulties. In her spare time, Taylor enjoys taking her dog to the beach, training for half marathons, hiking, and spending time with her family. 

Physical Therapists
Kimberly Iacobazzi

 PT, DPT (Physical Therapist)

Kimberly was born and raised in the suburbs of Chicago, Illinois, where she experienced physical therapy firsthand after a high school track injury. After intensive physical therapy, she went on to become a state champion track athlete. It was at that moment she knew she wanted to join the physical therapy profession. Kimberly received her B.S. in Kinesiology from San Diego State University in 2014 and went on to receive her Doctorate in physical therapy from Chapman University in 2017. Kimberly has fallen in love with the pediatric setting. She has worked with children from ages 0-21 years, with diagnoses such as cerebral palsy, spina bifida, autism spectrum disorder, down syndrome, spinal cord injury and muscular dystrophy. She has experience in clinic, early intervention, in-home, and school based models of pediatric physical therapy. Kimberly also has extensive experience in medical equipment, assessing, adjusting and ordering the appropriate device to allow her patients to be as independent and safe as possible. She emphasizes current evidence-based practice in all of her treatment plans and is committed to providing the highest standard of care for her patients, stressing family-centered care. Kimberly encourages caregiver involvement as often as possible to allow for children to achieve their optimal potential not only in the clinic, but also at home and in the community.


Kimberly enjoys spending her free time outdoors, practicing yoga, or volunteering at such organizations as Ability Ballet and Therapeutic Dance Intervention for Children with Cerebral Palsy.

Sherilyn Baker

B.S., PTA (Physical Therapist Assistant)

Sherilyn was born and raised in Huntington Beach, California. After receiving physical therapy during her high school track season she knew that she wanted to change lives in this field. She was a collegiate heptathalete and recieved her bachelor's of science degree in Kinesiology from California State University, Long Beach. She went on to earn her degree and licensure as a Physical Therapy Assistant.

Sherilyn's time volunteering at Millers childrens hospital solidified her already strong passion for the pediatric population. She has an extensive background working with children with special needs and has experience working in hospital, school, and private clinic settings. She has found her passion is working in a multidisciplinary clinic, maximizing resources for each patients' highest level of development. Sherilyn has experience working with a range of diagnoses including autism, cerebral palsy, hypotonia, and muscular dystrophy. She strongly believes in family focused treatment, getting caregivers involved in each patients journey to reaching their goals, and play based therapy for her younger patients. Sherilyn approaches each treatment session with evidence based practice. All of these passions facilitate her patients' paths to becoming as independent as possible while reaching their full potential. Sherilyn thoroughly enjoys working at OC Speech Services where teamwork is used to make each patient's success the top priority.

Office Administrators

Betsy was born and raised in Long Beach, CA. She earned her bachelor’s degree in Kinesiology from California State University, Long Beach. Betsy’s background includes working at both an outpatient physical therapy clinic as well as a neurological clinic.

She volunteered at OC Speech Services back in 2018 and joined the team in 2020 as a front office administrator. She understands the needs of families and enjoys helping others. She also plans to pursue a career as an occupational therapist.

In her free time, she enjoys traveling, hiking, paddle boarding, and going to the beach.

Betsy Sosa

B.S., Kinesiology,

Front Office Administrator

Hannah Brisson

M.S., CCC-SLP (Speech Therapist)

Hannah earned her Bachelor’s degree in Communication Sciences and Disorders at Biola University and her Master’s degree in Communication Sciences and Disorders at Longwood University in Virginia. Hannah has worked with children and adults with numerous medical conditions, communicative disorders, and developmental disabilities such as Autism Spectrum Disorder, Language Delay, Fluency Disorders, Articulation/Phonological Disorders, Down Syndrome, Apraxia, Dysarthria, Aphasia, and Dysphagia. 


Hannah has experience working in clinics, hospitals, and schools and especially loves working with children and being part of a multidisciplinary team to provide the best care possible for children and their families. Hannah is so excited to be a part of the team at OC Speech! 


In her free time, she enjoys running, cooking, reading, going to the beach, and spending time with friends and family.

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